Friendship (noun)

1. A state of being friends.
2. The feelings or behavior that exist between friends.

Origin:

Old english frēondscipe "friendship", from frēond "friend" + -scipe -ship.

Examples:

1. They have a strong friendship.
2. The friendship between them is based on trust and mutual understanding.
3. She values her friendship with him.
4. Their friendship has lasted for many years.
5. Friendship is important for a happy and healthy life.